Homebuilt 18m sailplane
Professor Ulf Ringertz from Sweden has designed, built and flown a couple of interesting non-Part 21 sailplanes. You can read about them at
https://nordicgliding.com/jomfruflyvning-paa-projekt-vm-vinderfly-efter-15-aar/
https://nordicgliding.com/svaevefly-paa-job-og-i-fritiden/
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